$bgColor = #00bcd4
img
  /*filter:grayscale(100%)  所有图片变成灰色调*/
  filter:grayscale(0%) /* 所有图片原色显示 */
  filter:blur(0px)/*设置图片模糊度*/

$txtOverflow()
  text-overflow: ellipsis
  white-space: nowrap
  overflow: hidden

$imgTop(url)
  content: ''
  position: absolute
  top:-.06rem
  left:0
  z-index: 1
  color:#fff
  width: .84rem
  height: .4rem
  background-image: url(url)
  background-size: cover

$tag()
  display: block
  width: 1.02rem
  height: .38rem
  line-height: .38rem
  text-align: center
  color:#fff
  font-size: .2rem
  position: absolute
  top:.2rem
  left:0
  border-bottom-right-radius:.2rem
  z-index: 99
